Speer swaged SWCs...
Speer makes 158 grain SWCs that never leaded up my gun and they don't have any features for ablation like the HBWC does. Especially at the velocities you describe. I don't know why your setup would lead barrels.
I've shot a boatload of Speer HBWC and SWCs and never had lead problems. Usually loaded with Bullseye or maybe Unique at times.
PERHAPS gas cutting is the mechanism for leading in the bullets that don't ablate. But at those low velocities and pressures I don't see how, unless the the back of the bullet it melting???????
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Last edited by rwsmith; 04-09-2018 at 07:47 PM.
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